The correct option is
A 18,19,818There are three special numbers in the Indian numbering system – lakh, crore, and arab. A lakh is 1,00,000, 1 , 00 , 000 , a crore is equal to a hundred lakhs and is expressed as 1,00,00,000. An arab is 100 crores and is expressed as 1,00,00,00,000.
So, eighteen lakh nineteen thousand eight hundred eighteen is,
18,19,818
Hence option B is the correct answer